{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T14:41:42Z","timestamp":1787064102278,"version":"build-2736575974"},"reference-count":84,"publisher":"Human Kinetics","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,3,1]]},"abstract":"<jats:p>\n                    <jats:italic>\n                      <jats:bold>Purpose<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    Accumulated time at a high percentage of peak oxygen consumption (VO\n                    <jats:sub>2<\/jats:sub>\n                    peak) is important for improving performance in endurance athletes. The present study compared the acute effect of a roller-ski skating session containing work intervals with a fast start followed by decreasing speed (DEC) with a traditional session where the work intervals had a constant speed (similar to the mean speed of DEC; TRAD) on physiological responses, rating of perceived exertion, and leg press peak power.\n                    <jats:italic>\n                      <jats:bold>Methods<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    A total of 11 well-trained cross-country skiers performed DEC and TRAD in a randomized order (5\u2009\u00d7\u20095-min work intervals, 3-min relief). Each 5-minute work interval in the DEC protocol started with 1.5 minutes at 100% of maximal aerobic speed followed by 3.5 minutes at 85% of maximal aerobic speed, whereas the TRAD protocol had a constant speed at 90% of maximal aerobic speed.\n                    <jats:italic>\n                      <jats:bold>Results<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    DEC induced a higher VO\n                    <jats:sub>2<\/jats:sub>\n                    than TRAD, measured as both peak and average of all work intervals during the session (98.2% [2.1%] vs 95.4% [3.1%] VO\n                    <jats:sub>2<\/jats:sub>\n                    peak, respectively, and 87.6% [1.9%] vs 86.1% [3.2%] VO\n                    <jats:sub>2<\/jats:sub>\n                    peak, respectively) with a lower mean rating of perceived exertion after DEC than TRAD (16.1 [1.0] vs 16.5 [0.7], respectively) (all\n                    <jats:italic>P<\/jats:italic>\n                    \u2009&lt;\u2009.05). There were no differences between sessions for mean heart rate, blood lactate concentration, or leg press peak power.\n                    <jats:italic>\n                      <jats:bold>Conclusion<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    DEC induced a higher mean VO\n                    <jats:sub>2<\/jats:sub>\n                    and a lower rating of perceived exertion than TRAD, despite similar mean speed, indicating that DEC can be a good strategy for interval sessions aiming to accumulate more time at a high percentage of VO\n                    <jats:sub>2<\/jats:sub>\n                    peak.\n                  <\/jats:p>","DOI":"10.1123\/ijspp.2018-0360","type":"journal-article","created":{"date-parts":[[2019,10,16]],"date-time":"2019-10-16T01:10:59Z","timestamp":1571188259000},"page":"383-389","source":"Crossref","is-referenced-by-count":22,"title":["Increasing Oxygen Uptake in Well-Trained Cross-Country Skiers During Work Intervals With a Fast Start"],"prefix":"10.1123","volume":"15","author":[{"given":"Bent R.","family":"R\u00f8nnestad","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tue","family":"R\u00f8mer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joar","family":"Hansen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","reference":[{"key":"ref821","first-page":"47","article-title":"Acute effects of high-intensity endurance exercise on subsequent resistance activity","volume":"13","author":"Leveritt","year":"1999","journal-title":"J Strength Cond Res"},{"key":"ref321","doi-asserted-by":"crossref","first-page":"5","DOI":"10.1123\/ijspp.2012-0382","article-title":"Variability and predictability of performance times of elite cross-country skiers","volume":"9","author":"Spencer","year":"2014","journal-title":"Int J Sports Physiol 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